Wissahickon Valley Watershed Association will hold its 15th Annual Wissahickon Walk and Trail Run on Oct. 2.
Participants can walk, run or hike on the Green Ribbon Trail, a 21-mile trail following the Wissahickon Creek from North Wales to the Schuylkill River.
The event benefits WVWA's efforts to preserve open space.
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For more information or to register, visit www.wvwa.org/walkathon.